Tropical fish breeding

Depending on their type, tropical fish may be herbivores or herbivores. Most tropical fish get a large amount of their food naturally, and another amount is provided with hand-made foods (grains, wheat and grains, etc.). Climate is one of the main factors in the breeding of warm blue fish and this category of fish is used to moderate to hot weather, so the desired area should have a temperature of about 17 to 25 degrees Celsius. The water intake of the pools is up to 70-80 cm, which in Khuzestan is up to one meter due to the heat, and a box is placed in front of the water inlet, which is covered with a 1-2 mm fine spring net to prevent disturbing aquatic animals. Do not enter the pool. You should always pay special attention to the water circulation system in the pools. If the management is not proper and the water circulation system is not paid attention to, it can cause the rapid spread of the disease from one pond to other ponds. Depending on the type of pool and the nutrients in its soil, fertilization is usually done every 10 to 15 days. The fish should feel day and night because the amount of darkness and light has a direct effect on the ripening of the eggs. The oxygen conditions must be very suitable and the water must have plenty of oxygen. In the generator, the oxygen conditions must be excellent. But for market fish, it is normal, that is, a lot of food, a lot of fertilization, etc., so that it does not suffer from lack of oxygen. The density considered for breeding ponds is a maximum of 2.5 tons in one-hectare ponds "2.5 tons per hectare", provided that the breeders are of a single species, but if we have several breeders, the density can also be 3 tons. delivered In this situation, one species is the main species with high density and the rest are secondary species. During the larval period, the fish swims vertically, but the juveniles swim horizontally. In fact, the baby Gull is the stage of fish growth when the larva has come to the surface of the water and the fish's swim bladder is filled with air. The larva is fed exclusively from the yolk sac, but external feeding has started in the juveniles, but they still have a yolk sac and feed from it, but active feeding has begun and about the yolk sac remains in the primary juveniles.

Achieving maximum production by observing the following principles: Accurate and correct location of the construction site of the project Using the design of breeding ponds in a closed circuit manner Use the return water as much as possible Use of minimum energy consumption Design based on separate modules (due to the possibility of multi-stage construction, easier management, non-spreading of possible disease to the whole farm, etc.) Aeration before water enters the pool Preventing the settling of suspended solids in swimming pools Separation of thick and thin water at the outlet of each pool Using multi-stage filtration (hydraulic-physical-biological-chemical) Proximity of fish farm to consumption markets Using well water and avoiding river pollution and stress